共 7 条
[2]
BAKER CJ, 1974, PEDIATRICS, V53, P568
[3]
CUNNIFF H, 1976, AM J MED TECHNOL, V42, P195
[5]
HILL A. M., 1940, Medical Journal of Australia, V1, P293
[6]
OCCURRENCE OF GROUPABLE BETA-HEMOLYTIC STREPTOCOCCI - STUDY AMONG SCHOOL CHILDREN IN BISMARCK, ND
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1962, 181 (03)
:197-+
[7]
RAMSAY AM, 1941, J OBSTET GYN BR COMM, V48, P569